20854204

素因数分解:

$2^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{1033}}^1$

素因数の和:1154

約数の個数: 36

約数和(自身を含む): 42906864

約数和(自身を除く): 22052660

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 103, 196, 206, 412, 721, 1033, 1442, 2066, 2884, 4132, 5047, 7231, 10094, 14462, 20188, 28924, 50617, 101234, 106399, 202468, 212798, 425596, 744793, 1489586, 2979172, 5213551, 10427102, 20854204]

約数ペア:

[(1, 20854204), (2, 10427102), (4, 5213551), (7, 2979172), (14, 1489586), (28, 744793), (49, 425596), (98, 212798), (103, 202468), (196, 106399), (206, 101234), (412, 50617), (721, 28924), (1033, 20188), (1442, 14462), (2066, 10094), (2884, 7231), (4132, 5047)]